◎ 题干
The expert’s theory, _____ my opinions were based, proved right in the end.
[     ]
A. on which  
B. whom  
C. for which  
D. that
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The expert’s theory, _____ my opinions were based, proved right in the end.[ ]A. on which B. whomC. for which D. that…”主要考查了你对  【关系代词】【介词和介词短语】【非限制性定语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。